9 1/2" matrix body pdc drilling equipmemnt,rock drill bit
T/T,L/C,Paypal, Western Union
7-30 days adter your payment
Chengdu, Sichuan, CN
in a wooden case
design drill bit upon your requirement.Please tell me your rock formation and application. Feel free to tell me your demands to sales02 at cdhptec dot com. Nice day!